Grodan Delta Rockwool Blocks - 3"

Grodan Delta 3" Rockwool Blocks are high-quality growing blocks designed for starting plants from seeds or cuttings and supporting vigorous early root development. Made from spun basalt rock fibres, they offer excellent aeration, water retention, and nutrient absorption. Ideal for use in hydroponic, NFT, and drip irrigation systems, these blocks are trusted by growers worldwide for consistent, reliable results.

Key Benefits

• Promotes strong root growth and uniform plant development
• Excellent air-to-water ratio for healthy, oxygen-rich roots
• Clean, inert, and pH-stable growing medium
• Suitable for seedlings, cuttings, and transplanting into larger slabs or pots
• Pre-drilled planting holes for easy propagation setup

Technical Information

• Brand: Grodan
• Product Type: Rockwool growing block
• Size: 3" (7.5 cm) square
• Material: Spun basalt rock fibres
• Use: Propagation and early-stage growth
• Compatibility: Hydroponic systems, NFT, drip irrigation, and hand-watering setups
• pH Range: Neutral when conditioned (soak and rinse before use)

Why Use Grodan Delta Rockwool Blocks?

Grodan Delta Rockwool Blocks provide the perfect balance of moisture and aeration to encourage strong, healthy root development. Their uniform structure allows for precise control over water and nutrient delivery, helping plants establish quickly and grow evenly. They are a reliable choice for professional and hobby growers seeking consistent propagation results.

Buy Grodan Delta Rockwool Blocks – 3" at GoGrow

At GoGrow, we stock the full Grodan range with fast UK delivery and expert support. Order Grodan Delta 3" Rockwool Blocks today and give your plants the perfect start for healthy, vigorous growth.